def on_message(ws, message):
message_decoded = json.loads(message)
global blockchain
if (message_decoded['message_type'] == 'transaction'):
transaction_json = message_decoded['data']
transaction = Transaction.from_json(transaction_json)
if (transaction.validate_transaction() == True):
block_f = Thread(target=block_fanagle, args = (ws, transaction))
block_f.start()
elif (message_decoded['message_type'] == "sync_request"):
print ("blockchain requested")
ws.send(blockchain_upload_message())
elif (message_decoded['message_type'] == "blockchain_upload"):
recieved_blockchain = BlockChain.from_json(message_decoded['blockchain'])
new_blockchain = BlockChain.sync_blockchain(blockchain, recieved_blockchain)
blockchain = new_blockchain
blockchain.save_blockchain('./blockchain/blockchain.json')
print ()
elif (message_decoded['message_type'] == 'new_block'):
print ("new block!")
block_json = message_decoded['block']
try:
block = Block.from_json(block_json)
if (block.valid_block() == True):
temp_blocks = copy.copy(blockchain.blocks)
temp_blocks.append(block)
temp_block_chain = BlockChain(temp_blocks)
if (temp_block_chain.validate_chain() == True):
print ("valid new blockchain")
blockchain.blocks.append(block)
else:
print("invalid chain. Not updated")
else:
print ("invalid block")
except json.decoder.JSONDecodeError:
print ("invalid block")
blockchain.save_blockchain('./blockchain/blockchain.json')
def sync_blockchain(broadcast_message, payload):
print("preparing for sync")
global blockchain
recv_blockchain_raw = json.loads(payload["data"])
recieved_blockchain = BlockChain.from_json(payload["data"])
synced_blockchain = BlockChain.sync_blockchain(blockchain,
recieved_blockchain)
blockchain = synced_blockchain
blockchain.save_blockchain('./blockchain/blockchain.json')
print("blockchain synced")
print()
def on_message(ws, message):
message_decoded = json.loads(message)
global blockchain
if (message_decoded['message_type'] == "message"):
print(message_decoded['message'])
elif (message_decoded['message_type'] == "blockchain_upload"):
print("recieved blockchain")
recieved_blockchain = BlockChain.from_json(
message_decoded['blockchain'])
new_blockchain = BlockChain.sync_blockchain(blockchain,
recieved_blockchain)
print()
blockchain = new_blockchain
blockchain.save_blockchain('./blockchain/blockchain.json')
print()
sys.stdout.write(prompt_string())
sys.stdout.flush()
elif (message_decoded['message_type'] == "sync_request"):
print("blockchain requested")
ws.send(blockchain_upload_message())
print()
sys.stdout.write(prompt_string())
sys.stdout.flush()
elif (message_decoded['message_type'] == "new_block"):
print()
print("New Block Recieved!")
block_json = message_decoded['block']
try:
block = Block.from_json(block_json)
if (block.valid_block() == True):
temp_blocks = copy.copy(blockchain.blocks)
temp_blocks.append(block)
temp_block_chain = BlockChain(temp_blocks)
print(temp_block_chain)
if (temp_block_chain.validate_chain() == True):
print("valid new blockchain")
blockchain.blocks.append(block)
else:
print("invalid chain. Not updated")
else:
print("invalid block")
except json.decoder.JSONDecodeError:
print("invalid block")
blockchain.save_blockchain('./blockchain/blockchain.json')
print()
sys.stdout.write(prompt_string())
sys.stdout.flush()
